DIfference between fsrs.js and ts-fsrs

[1cedsoda]

What is the difference between fsrs.js and ts-fsrs, since they are both implemented using typescript?

[L-M-Sherlock]

They are developed by two different developers. The ts-fsrs has more documents.

[ishiko732]

I am one of the authors of ts-fsrs. ts-fsrs was initially separated from business code, which might make it more suitable for writing projects related to business logic. ts-fsrs does not prefer you to use new FSRS(). Instead, it prefers you to use fsrs() to create instances. fsrs.repeat/rollback/forget allow you to mix Date/number/string types of time.

Difference between fsrs.js and ts-fsrs

Language and Refactoring History

• ts-fsrs was written in TypeScript from the beginning.
• fsrs.js was originally written in JavaScript and later refactored using TypeScript.

FSRS Versions

• ts-fsrs use FSRS-4.5 Algorithm
• fsrs.js use FSRS-v4 Algorithm

Functional Differences

• ts-fsrs has two additional application features compared to fsrs.js:
  • rollback
  • forget

Revlog Differences

• The revlog in ts-fsrs provides more detailed information to support operations such as rollback and forget.

Rating Differences

• ts-fsrs includes an additional Manual Rating option.

Test Coverage

• ts-fsrs maintains a test coverage of over 90%.

[1cedsoda]

Thanks!